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Operation
down, they require a cool down period of approximately
ten minutes before they can be switched on again.
NOTE: The light tower uses four 1000W or 1050W
bulbs. When checking or replacing the bulbs, wipe them
with a clean cloth to avoid leaving any grease, oil residue
or fingerprints on the glass. Any residue can create a hot
spot on the bulb, causing premature bulb failure.
WARNING
Burn hazard. Lamps become extremely hot
while in use. Allow 10–15 minutes for cooling
before handling or lowering mast. Touching a
hot lens or fixture can cause severe burns.
Auxiliary Outlets
See
Figure
3-19. The receptacle panel is equipped with
six receptacles for running accessories or tools from the
generator. Power is supplied to the receptacles any time
the engine is running and the main circuit breaker and the
receptacle panel main circuit breaker are switched to the
ON (I) position.
Should the main breaker, or any of the individual circuit
breakers trip, remove some of the load to the receptacles
before turning them back on.
Each receptacle has an individual circuit breaker, located
inside the cabinet under a flip-up cover. Each circuit
breaker correspond with the receptacle directly below it.
With all of the lights off, the full generator output may be
used with the receptacles.
NOTE: To ensure proper grounding, anytime the
generator is providing power to any equipment or load
panels that do not have a grounded plug (A), a ground
wire MUST BE added between the equipment and the
grounding stud on the receptacle panel per the National
Electrical Code (NEC), state, and local regulations.
Figure 3-19. Auxiliary Outlets
24
(000278)
A
004664
Wet Stacking
The unit is powered by a diesel engine. Diesel engines
are susceptible to wet stacking if lightly loaded. Wet
stacking occurs when an engine is run at less than 30%
of its full load capacity, causing unburned fuel to
accumulate in the exhaust system. Wet stacking can be
detected by continuous black exhaust when the unit is
under a constant load. It can also cause fouling of
injectors and buildup on engine valves. Diesel engines
operate properly when applied loads are between 30%
and 100% capacity. Appropriate generator sizing is
determined by the anticipated load. If the unit is in a wet
stack condition, load the unit heavily for five hours or until
the exhaust is clear.
Voltage Regulator
Units are equipped with an electronic voltage regulator.
The voltage regulator controls the output of the generator
by regulating the current into the exciter field. The
regulator
has
three
potentiometers that may be adjusted for voltage, stability
and voltage roll-off (U/F).The voltage regulator is
adjusted before shipment from the factory. Contact
Generac Mobile Products LLC for additional information
before attempting to adjust the voltage regulator.
Engine Derating
All units are subject to derating for altitude and
temperature; this will reduce the available power for
operating tools and accessories connected to the
receptacles. Typical reductions in performance are 2-4%
for every 1000 ft (305 m) of elevation and 1% per 10ºF
(5.6ºC) increase in ambient air temperature over 72ºF
(22ºC).
Main Circuit Breaker
The main circuit breaker is located on the main control
panel. When the breaker is in the OFF (O) position,
power is interrupted between the connection lugs and the
generator. Once the connections have been made to the
connection lugs and the unit has been started and
allowed to reach normal operating temperature, the
breaker may be switched to the ON (I) position.
The main circuit breaker will be tripped, disconnecting
power to the connection lugs if any of the following items
occur while the unit is running:
1. Overload of the generator circuits to the connection
lugs (208/120V only).
2. The lug box door covering the connection lugs is
opened.
3. If the emergency stop switch is activated.
Owner's Manual for MLT Light Tower
screwdriver
adjustable
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Table of Contents
Troubleshooting
